System and method for authenticating electronic money using a smart card and a communication terminal

ABSTRACT

The present invention relates to a system and a method for authenticating an electronic money using a smart card and a communication terminal. The present invention provides a system and a method for authenticating an electronic money, wherein the system comprises a smart card and a communication terminal. The smart card takes biometric signature from a user as an input, transmits recognition completion information to the communication terminal when the biometric signature inputted by the user matches the stored biometric signature, receives an update command from the communication terminal, updates the amount of stored balance data, and transmits an update completion message to the communication terminal. The communication terminal is connected to the smart card in a wired or wireless manner, and transmits the update command to the smart card upon receipt of the recognition completion information.

TECHNICAL FIELD

The present disclosure relates to a method and system for authorizingelectronic money using a smart card and a communication terminal. Moreparticularly, the present disclosure relates to a method and system forauthorizing electronic money using a smart card and a communicationterminal, intended to enhance the security by using a smart card thatstores a biometric signature of the legitimate owner or user for use inan authentication process and thus prohibiting the use of unauthorizedperson when a user uses the biometric smart card charged with electronicmoney or uses a service from a remote place.

BACKGROUND

Foreign travelers or even local people carry cash and thus are exposedto loss or theft of the cash. Carrying big amount of cash would cause aninconvenience and a crime while carrying small amount of cash wouldcause another inconvenience of frequent withdrawal or exchange whenevernecessary. An alternative measures to cope with this kind of problem isan electronic money or e-money. The e-money, however, has a pitfall thatit lacks such functions as user authentication and therefore it isvirtually impossible to be returned if lost.

DISCLOSURE Technical Problem

Therefore, to solve the above-mentioned problems, the present disclosureseeks to provide a system and method for authentication electronic moneyusing a smart card and a communication terminal, which improve thesecurity capabilities by preventing the usage of abnormal users afterlogging into the system, excluding an authorized user, since the usereither use a biometric authentication smart card charged with anelectronic money, or use a smart card stored a biometric signature inorder to authorize the user as using the service from a long-distanceplace.

SUMMARY

An embodiment of the present disclosure provides a system forauthorizing an electronic money comprises: a smart card for receiving abiometric signature from a user, matching the biometric signature inputfrom the user with a previously stored biometric signature of the user,transmitting an authentication completion information confirming the twobiometric signature match each other, and updating a balance of theelectronic money upon receiving an update command; and a communicationterminal, connectable to the smart card in a wired or wireless way, fortransmitting the update command to the smart card upon receiving theauthentication completion information.

The authentication completion information comprises a URL (UniformResource Locator) and an authentication information, and thecommunication terminal executes an authentication process bytransmitting the authentication information to the URL and transmits theupdate command to the smart card upon receiving an authorization successinformation from the URL.

The update command is a deduction signal which is generatedperiodically.

The biometric signature comprises at least one of fingerprint signature,vascular pattern information, voice pattern information, iris patterninformation, and palm pattern information.

The smart card stores the fingerprint signature for a plurality ofregistered users, and selectively transmits an authorization informationto the communication terminal depending on the fingerprint signatureinputted by the user.

The authorization information comprises a PKI (public keyinfrastructure) certificate having an authentication code that matchesthe biometric signature.

The authentication information comprises a one-time password (OTP)generated by the smart card.

The authorization information comprises a code for authentication theuser and a transmission time information of the authorizationinformation.

The communication terminal requests the electronic money authenticationservice to the URL upon receiving the authorization success informationfrom the URL, while transmits an update command to the smart card uponreceiving the update command from the URL.

The smart card comprises a biometric signature scan and input sectionfor receiving the biometric signature from the user; a biometricsignature storage section for storing a biometric signature ofregistered subscribers; a PKI (public key infrastructure) certificatestorage section; a biometric signature matching section for comparingthe biometric signature inputted from the biometric signature scan andinput section with the biometric signature stored in the biometricsignature storage section to determine whether the two biometricsignature matches each other or not, when the PKI (public keyinfrastructure) certificate for storing in the PKI (public keyinfrastructure) certificate storage section is received; and a PKI(public key infrastructure) certificate storage control section forstoring the PKI (public key infrastructure) certificate in the PKI(public key infrastructure) certificate storage section, when theinputted biometric signature matches the stored biometric signature andan information that matches the biometric signature of the user isincluded in the PKI (public key infrastructure) certificate.

Another embodiment of the present disclosure provides a method forauthorizing an electronic money comprises: receiving, at a smart card, abiometric signature input from a user, and transmitting anauthentication completion information carrying an authentication oninformation to an uniform resource locator (URL) which is previously setwhen the inputted biometric signature and the stored biometric signaturematch each other: and receiving, at a smart card, an update commandgenerated based on the authentication completion information andupdating an amount of money for a stored balance data.

When a PKI (public key infrastructure) certificate is received, as theauthorization information for storing in the smart card, in the firstreceiving step, the PKI (public key infrastructure) certificate isstored as the authorization information in case that both the inputtedbiometric signature and the stored biometric signature match each otherand an information matching the user biometric signature is included inthe PKI (public key infrastructure) certificate.

Advantageous Effects

It has an effect of improving security by double checking the biometricsignature when using PKI (public key infrastructure) certificate as wellas biometric signature. When using fingerprint signature as a pluralityof biometric signature in user authorization, it has effect havingfurther function of preventing abnormal usage of a stranger according tothe fingerprint which is inputted to the smart card when performing userauthorization by force. Additionally, it has an effect of multiplyinguser authorization as well as convenience of the user not inputting thepassword by confirming OTP one by one when authorizing the user bygenerating OTP automatically.

DESCRIPTION OF DRAWINGS

FIG. 1 is a block diagram illustrating a system for authorizingelectronic money according to a preferred embodiment of the presentinvention.

FIG. 2 is a block diagram prefiguratively illustrating a smart card usedin a system for authorizing electronic money according to a preferredembodiment of the present invention.

FIG. 3 is a view illustrating a connection status between a smart cardand a communication terminal according to a preferred embodiment of thepresent invention.

FIG. 4 is a flowchart illustrating a method for authorizing electronicmoney according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION

Hereinafter, aspects of the present disclosure will be described indetail with reference to the accompanying drawings. In the followingdescription, the same elements will be designated by the same referencenumerals although they are shown in different drawings. Further, in thefollowing description of the present disclosure, a detailed descriptionof known functions and configurations incorporated herein will beomitted when it may make the subject matter of the present disclosurerather unclear.

Additionally, in describing the components of the present disclosure,there may be terms used like first, second, A, B, (a), and (b). Theseare solely for the purpose of differentiating one component from theother but not to imply or suggest the substances, order or sequence ofthe components. If a component were described as ‘connected’, ‘coupled’,or ‘linked’ to another component, they may mean the components are notonly directly ‘connected’, ‘coupled’, or ‘linked’ but also areindirectly ‘connected’, ‘coupled’, or ‘linked’ via a third component.

FIG. 1 is a block diagram illustrating a system for authorizingelectronic money according to a preferred embodiment of the presentinvention.

As shown in FIG. 1, the system for authorizing electronic moneyaccording to a preferred embodiment of the present invention includes asmart card 110 and a communication terminal 120.

The smart card 110 receives a biometric signature from a user, performsauthentication process to check whether the biometric signature inputfrom the user matches a previously stored biometric signature, andtransmits an authentication completion information when the twobiometric signatures match each other, updates the balance uponreceiving an update command; and transmits an update completion messageto the communication terminal 120 upon completing the update.

The communication terminal 120 is connected to the smart card 110 in awired or wireless way, transmits the update command to the smart card110 upon receiving the authentication completion information, and maytransmit payment information to a service server 130 upon receiving theupdate completion message from the smart card 110. The paymentinformation may include at least a payment success message and an amountof payment.

Further, the authentication completion information may include a balancedata and/or authentication information.

The update of the balance data may involve either increase or decreasethe balance amount. The update operation is a decrease command when thebalance amount is decreased, while the update operation is an increasecommand when the balance amount is increased.

Now, in the preferred embodiment, it will be described with two separatecases: decreasing the balance data; and increasing the balance data.That is, the first case will be described in a first embodiment and thesecond case will be described in a second embodiment of the presentinvention.

The communication terminal 120 may be linked to a wired or a wirelessnetwork 160.

In the first embodiment of the present invention, if the balance datareceived at the communication terminal 120 is more or equal to theamount of money paid for using a service, the decrease amount of money,including the decreasing command for deducting the balance data asamount as the used amount of money, may be generated in thecommunication terminal 120. Alternatively, the communication terminal120 may be equipped with an input unit for receiving input of the usedamount of money. Further, the decrease amount of money including thedecrease command may be delivered from the service server 120 to thecommunication terminal 120, and then the communication terminal 120 maytransmit it to the smart card 110.

As described as above, when the decreasing command is transmitted fromthe communication terminal 120 to the smart card 110, the authorizationprocess may be completed by using only the biometric signature of thesmart card 110, without a separated authorization process usingadditional authorization information such as a PKI (public keyinfrastructure) certificate or a single-use or one-time password, etc.The PKI (public key infrastructure) certificate s is an electroniccertificate issued from a certain authentication authority with which abusiness counterpart can be trusted when doing transaction on the web,and comprises user name of the PKI (public key infrastructure)certificate, validity, a public key to confirm digital signature of theuser, and a digital signature of the certificate authority who certifiesthat it is authentic.

FIG. 2 is a block diagram illustrating a smart card used in a system forauthorizing electronic money according to a preferred embodiment of thepresent invention.

Referring to FIG. 2, the smart card 110 includes a biometric signaturestorage section 111, a PKI (public key infrastructure) certificatestorage section 112, a balance storage section 113, a biometricsignature scan and input section 114, an balance management section 115,a biometric signature matching section 116, a PKI (public keyinfrastructure) certificate storage control section 117, and furtherincludes an authorization section 118, and an one-time password (OTP)generation section 119.

The biometric signature scan and input section 114 receives thebiometric signature of the user or owner of the smart card 110. Thebiometric signature scan and input section 114 is implemented as afingerprint pattern recognition sensor, an iris pattern recognitionsensor, a vascular pattern recognition sensor, a voice patternrecognition sensor, a palm pattern recognition sensor, etc.

The authorization server 150 issues the PKI (public key infrastructure)certificate matching the authentication information of the registereduser. To obtain the PKI (public key infrastructure) certificate, theuser subscribes to a PKI (public key infrastructure) certificate issuingorganization and registers his or her biometric signature. Preferably,the authorization server 150 may encode the registered biometricsignature and inserts it into the PKI (public key infrastructure)certificate. Preferably, the biometric signature includes at least anyone of fingerprint signature, vascular pattern information, voicepattern information, iris pattern information, and palm patterninformation. In the preferred embodiment of the present invention,though it has been described that the authorization server 150 issuesthe PKI (public key infrastructure) certificate, it is merely an exampleand a separated PKI (public key infrastructure) certificate issuingserver (not shown) may issue it.

The biometric signature storage section 111 may store the biometricsignature of the registered subscriber issued from the authorizationserver 150. The biometric signature storage section 111 stores thebiometric signature corresponding to the type of sensor of the biometricsignature scan and input section 114. That is, in case the biometricsignature scan and input section 114 is implemented as the fingerprintpattern recognition sensor, the biometric signature storage section 111stores the fingerprint signature of the registered subscriber as thebiometric signature, while the biometric signature scan and inputsection 114 is implemented as the iris pattern recognition sensor, thebiometric signature storage section 111 stores the iris patterninformation of the registered subscriber as the biometric signature.

The biometric signature storage section 111 further stores a pluralityof biometric signatures for a registered subscriber. For example, incase of storing the fingerprint signature of the registered subscriberas the biometric signature, the fingerprint signature of each finger maybe stored, while the iris pattern information of both eyes may be storedin case of storing the iris pattern information of the registeredsubscriber as the biometric signature.

The PKI (public key infrastructure) certificate storage section 112stores the PKI (public key infrastructure) certificate issued by theauthorization server 150. Here, it may be implemented that only theorganization issuing the smart card 110 is allowed to store the PKI(public key infrastructure) certificate in the PKI (public keyinfrastructure) certificate storage section 112. But, in certaincircumstances, however, the user may download the PKI (public keyinfrastructure) certificate by accessing the authorization server 150through the network, and store the PKI (public key infrastructure)certificate in the PKI (public key infrastructure) certificate storagesection 112, or take a copy of the certificate from a personal computerand store the PKI (public key infrastructure) certificate in the PKI(public key infrastructure) certificate storage section 112.

Meanwhile, when issuing the smart card 110, the PKI (public keyinfrastructure) certificate may be arranged to be stored in the PKI(public key infrastructure) certificate storage section 112 by the PKI(public key infrastructure) certificate storage control section 117. ThePKI (public key infrastructure) certificate storage control section 117determines whether the information matching the biometric signature ofthe user is included in the received PKI (public key infrastructure)certificate, if the biometric signature of the user inputted by thebiometric signature scan and input section 114 duly matches thebiometric signature stored in the biometric signature storage section112 when the PKI (public key infrastructure) certificate is received tostore in the PKI (public key infrastructure) certificate storage section112. For example, a code matching the stored biometric signature may bestored in PKI (public key infrastructure) certificate storage section112 together with the PKI (public key infrastructure) certificate; anauthorization code of the received PKI (public key infrastructure)certificate may check whether the received authorization code matchesthe code stored in the PKI (public key infrastructure) certificatestorage section 112. Further, the checking method may be implemented bydata-processing the authorization code and comparing with the storedbiometric signature and the method is not limited in this embodiment.

The PKI (public key infrastructure) certificate storage control section117 stores the received PKI (public key infrastructure) certificate inthe PKI (public key infrastructure) certificate storage section 112,when it is determined that the received PKI (public key infrastructure)certificate includes the information matching the biometric signature ofthe user. Therefore, the PKI (public key infrastructure) certificatestorage control section 117 primarily can allow only the authorized userof the smart card 110 to store the PKI (public key infrastructure)certificate in the PKI (public key infrastructure) certificate storagesection 112, and the PKI (public key infrastructure) certificate storedin the PKI (public key infrastructure) certificate storage section 112secondly can be implemented to limit only to the PKI (public keyinfrastructure) certificate including the information matching thebiometric signature for the authorized user. But, such PKI (public keyinfrastructure) certificate storage process is to intensify theauthorization procedure by the smart card 110, as an alternative, it maybe implemented to store the corresponding PKI (public keyinfrastructure) certificate even if it has no information matching thebiometric signature of the user.

The biometric signature matching section 116 checks whether thebiometric signature, which is inputted by the biometric signature scanand input section 114, matches the biometric signature stored in thebiometric signature storage section 111. Namely, it is checked whetherthe biometric signature of a smart card user matches the biometricsignature of the user registered in the authorization server 150.

When the biometric signature inputted through the biometric signaturescan and input section 114 matches the biometric signature stored in thebiometric signature storage section 111, the authorization section 118transmits the authorization completion information to the communicationterminal 120, and the communication terminal 120 may check the balancedata and transmit the deduction command to the smart card 110.

If the authorization information (PKI (public key infrastructure)certificate and/or OTP) is additionally used for authorization besidesthe biometric signature, the URL (Uniform Resource Locator) and theauthorization information stored in the smart card 110 are transmittedto the communication terminal 120 upon completion of the biometricsignature authentication to transmit it to the service server 130 sothat the current user of the smart card 110 is authorized as alegitimate user. Herein, it may be implemented that the communicationterminal 120 transmits the authorization information to the URLpreviously set. The URL may represent an address of the service server130, and the authorization information is authorized by using aself-authorization module or the authorization server 150 connected withthe network 160 upon receiving it from the service server 130.

The authorization information may be implemented by at least one of thePKI (public key infrastructure) certificate stored in the PKI (publickey infrastructure) certificate storage section 112, and an one-timepassword (OTP) generated by the one-time password (OTP) generationsection 119. The authorization information may further comprise a codefor proving the user and transmission time information and may transmitthem together.

The authorization information being forwarded to the service server 130may include unique information for proving user actions for future use.Preferably, this unique information is implemented as a bar code forchecking an action time of the user and authorizing the user, or adigital signature of the user. In addition, the bar code and the digitalsignature of the user are implemented as being printable. Theauthorization information may further include transmission timeinformation of the authorization information. Hence, the reliability fora mutual contract will be enhanced since the authorization operationusing the smart card 110 may be printed as a user signature in a receiptor a voucher, etc.

If a plurality of biometric signatures are stored for subscribersregistered in the biometric signature storage section 111, theauthorization section 118 may be implemented to perform multipledifferent authorization processes, since the authorization section 118is connected to multiple different URLs according to the biometricsignature matching the biometric signature inputted from the biometricsignature scan and input section 114.

The OTP generation section 119 generates the OTP in a prescribed mannerby the issuance organization of the smart card 110. In this case, theOTP generated by the OTP generation section 119 may be implemented todisplay the user of the smart card 110, and the authorization section118 may be implemented to transmit the authorization information to URLafter passing through the authorization process on the user of the smartcard 110 one more time through the OTP inputted by the user. Likewise,the OTP generated by the OTP generation section 119 may be prohibited tobe viewed by the user of the smart card 110, and the authorizationsection 118 may combine the OTP generated by the OTP generation section119 with at least one of the authorization information and transmits thecombination to a preset URL, so that it can be implemented to authorizethat the corresponding smart card 110 was issued by the authorizedissuance organization. Herein, the OTP may be either generated by theuser's pushing a corresponding button or automatically generated by theuser's inputting the biometric signature.

The balance storage section 113 stores the balance amount of money forthe electronic money remaining in the smart card 110, the balancemanagement section 115 receives a decrease command from thecommunication terminal 120 and decreases the balance amount of moneyremaining in the balance storage section 113.

FIG. 3 is a view illustrating a connection status between a smart card110 and a communication terminal 120 according to a preferred embodimentof the present invention. As shown in FIG. 3, the communication terminal120 is implemented as a mobile communication terminal, and a dongle 310having USB terminal for use in linking the smart card 110 to the mobilecommunication terminal. Preferably, the dongle 310 has a cardrecognition section (not shown) for recognizing the smart card 110 in acontact manner or an insert manner.

In the preferred embodiment of the present invention, although the smartcard 110 is depicted as being implemented as a shape of an ordinarycredit card, a debit card, or a traffic card, etc., and it may beimplemented as an information protection token, etc.

The communication terminal 120 is depicted as mobile terminals such as aPDA, a cellular phone, a notebook, but it may be implemented ascommunication devices, connected to a network through wired network,such as a desk top, Automated Teller Machine (ATM), Kiosk.

Moreover, as illustrated in Figure, although the smart card 110 and thecommunication terminal 120 are separately configured, but it is notlimited to this configuration. The smart card 120 and the communicationterminal 120 can be combined to implement as one user authorizationapparatus. Namely, the communication terminal 120 comprises a biometricsignature scan and input section 114 for receiving biometric signatureof the user, and can be implemented to authorize the user by using thePKI (public key infrastructure) certificate matching the biometricsignature of the user. In this case, the communication terminal 120 canbe implemented to store the PKI (public key infrastructure) certificatematching the biometric signature of the user itself and to authorize theuser by using the stored PKI (public key infrastructure) certificate,and can be implemented to authorize the user by receiving the PKI(public key infrastructure) certificate matched from the computer or USBmemory.

Once the smart card 110 receives a fingerprint signature from the userthrough the biometric signature scan and input section 114, and thebiometric signature matching section 116 determines that the informationinputted from the user matches the fingerprint signature stored in thebiometric signature storage section 111, the stored balance data can betransmitted to the communication terminal 120 along with theauthorization information.

The PKI (public key infrastructure) certificate issued from theauthorization server 150 certifies the match of the biometric signaturestored in the biometric signature storage section 111, and may includeregistered user information and an authorization code. The authorizationserver 150 receives a PKI (public key infrastructure) certificate fromthe communication terminal 120, and authorizes the user by confirmingwhether the PKI (public key infrastructure) certificate is a valid PKI(public key infrastructure) certificate.

Meanwhile, the fingerprint signature on a plurality of fingers of theuser can be stored as the biometric signature in the biometric signaturestorage section 111 of the smart card 110. For example, in case ofstoring the fingerprint signature of a plurality of fingers (Forexample, fingerprint signature of a thumb and an index finger) in thebiometric signature storage section 111, when a user authorizes herselfor himself by inputting the biometric signature, one of fingerprintsignature (For example, fingerprint signature of a thumb) may be usedfor a normal authorization. Additional authorization can be executed inauthorizing using other finger (For example, an index finger), forexample, when the fingerprint signature on a plurality of fingers of theregistered subscriber is stored as the biometric signature in thebiometric signature storage section 111, then the communication tunnelis established as a safety management server such as a police server byone of any fingerprint signature, and the emergency signal istransmitted to the server. It is implemented to send a report with thefingerprint signature when it is a case for the user to execute theauthorization process by using the smart card 110 in force by the threatof a stranger.

Meanwhile, the URL (For example, address of the service server 130) setfor transmitting the authorization information can be stored in aprescribed place within the smart card 110 or biometric signature, or incombination with authorization information. The URL can also betransmitted when the authorization information is transmitted to thecommunication terminal 120 from the smart card 110.

The service server 130, having a designated URL, can be shopping mallssever or a payment server in case for a user to use the mobilecommunication terminal to access the shopping mall server to purchasegoods. In case for a user to do internet banking using the mobilecommunication terminal 120, the server of the corresponding bank can bethe service server 130 and a URL of the corresponding bank will bedesignated.

The service server 130 receives the PKI (public key infrastructure)certificate and/or OTP included in the received authorizationinformation, and authorizes the user by confirming whether the storedauthorization related information matches the PKI (public keyinfrastructure) certificate and/or OTP. Upon completion of theauthorization, the authorization success information is transmitted tothe communication terminal 120, and the communication terminal 120transmits the deduction command to the smart card 110 after comparingthe data which will be deducted from the amounts of balance data.

The service server 130 transmits the authorization success message tothe communication terminal 120 when the user authorization is completed.When receiving the authorization success message, the communicationterminal 120 transmits the deduction command including amount ofdeducting (Namely, deduction data) to the smart card 110, and the smartcard 110 receives the deduction data, calculates the deduction datatherein and decreases the amount of balance data as much as deductiondata.

The service server 130 provides various services for the authorized useron the basis of the PKI (public key infrastructure) certificate issuedby the authorization server 150. Herein, the service providing server130 has URL connected to the network 160, authorizes the user byreceiving authorization information from the smart card 110 through thenetwork 160, provides content to the authorized user through the network160, and provides services such as home-shopping service using IPTV,offline product sale, rental, money transfer, payment. Namely, theservice server 130 may include various servers for performing servicessuch as payment for purchase of the user, product or service provision,internet banking business, etc.

In case of purchasing goods in a shop, when a user having the smart card110 shows intention to pay with the smart card 110 after purchasing thegoods, the clerk inputs the price of product into the prescribedterminal (Herein, POS terminal of the shop can be the communicationterminal 120) by using a prescribed input means, and the smart card 110is connected to the communication terminal 120 of the shop by the user.

The communication terminal 120 may connect to the smart card 110 by thewired or wireless communication method. Upon receiving authenticationcompletion information from the smart card 110, the communicationterminal 120 confirms whether the balance data is less than the price ofthe goods or not in case when balance data is included in theauthentication completion information, and when it is determined thatthe payment with the balance data is possible, the deduction commandwhich includes the deduction data corresponding to the price of thegoods is transmitted to the smart card 110. If the balance data is notenough for the payment, an error sound is generated to indicate the lackof balance of the smart card 110. The smart card 110 receives deductiondata from the communication terminal 120 and transmits an updatecompletion message to the communication terminal 120 upon deducting theamount of balance data stored in the balance storage section as much asthe deduction data. The method of deducting the amount of the smart card110 is to calculate the balance after the deduction from thecommunication terminal 120, to transmit the balance data after thededuction to the smart card 110, and to complete the payment by storingthe balance data in the smart card 110.

If the balance data is not included in the authentication completioninformation which is to be transmitted to the communication terminal 120from the smart card 110, the comparison between the balance data and thededuction data may be performed in the smart card 110. Merely, thecommunication terminal 120 which has received the authorization successinformation transmits the deduction command including the deduction datato the smart card 110. The smart card 110 which has received thededuction data compares the balance data with the deduction data, and ifthe balance data is not less, the amount of the balance data stored inthe balance storage section 113 is deducted as much as the deductiondata, and the update completion message is transmitted to thecommunication terminal 120.

Likewise, there are several methods of deducting from balance data withdeduction command, and the present invention is not limited to this.

Upon receiving the update completion message from the smart card 110,the communication terminal 120 transmits the payment information to aprescribed server (service server 130 or payment server 140, here it isthe service server 130). The payment information can be transmitted inreal time, and several payment information can be collected and gatheredalong with other payment information at certain time and can betransmitted to the service server 130.

In case that the user is served by the remote service server 130 byperforming the user authorization using the communication terminal 120,the communication terminal 120 receives the authentication completioninformation from the smart card 110 and transmits the service request tothe service server 130. Making a call with the mobile communicationterminal 120 is an example. In this case, the mobile communicationterminal 120 executes programs for authorization of call and recognitionof smart card transmits service request (request for a call) along withthe telephone number to the service server 130 after receiving theauthentication completion information and the telephone number from thesmart card 110, and transmits the deduction command including deductiondata to the smart card 110 by calculating update data (deduction data)from the deduction signal after receiving the update signal (deductionsignal) from the service server 130 periodically during or after theservice.

In case of transmitting the balance data along with the authenticationcompletion information to the communication terminal 120 from the smartcard 110, the communication terminal 120 may prohibit the callconnection when the balance data is not sufficient. The communicationterminal 120 may allow the service server 130 to determine whether thebalance data is sufficient for a call attempt by transmitting thereceived balanced data to the service server 130. If the balance datareceived from the communication terminal 120 is not sufficient for acall attempt, the service server 130 sends the message indicating thatno more service will be allowed, and makes the communication terminal120 stop the call along with the call stopping message.

The deduction signal that the communication terminal 120 receives fromthe service server 130 comprises deduction data, and the communicationterminal 120 can extract the deduction data from the deduction signal.

Two or more functions of service server 130, payment server 140, andauthorization server 150, can be modularized and can be implemented insingle server.

When making a call with the mobile communication terminal 120, thededuction signal may be transmitted periodically during the call, to thecommunication terminal 120 from the service server 130. A situation ofinsufficient funds may occur since the call bill exceeds the balancedata of the smart card 110 due to unchecked big call volume, which canbe prevented by executing the payment in periodical basis like a publicpayphone. According to the embodiment, the deduction signal can begenerated at once, instead of being generated periodically, once thecall service is completed. This embodiment is not limited to thetelephone call, but also can be applied to all cases of payment withsmart card 110 and communication terminal 120 after using servicesprovided by the service server 130.

When the biometric signature stored in the smart card 110 fails to matchthe biometric signature recognized at the biometric device 111, or theauthorization with the authorization information has failed in theservice server 130, then the authorization failure message is generatedand transmitted to the communication terminal 120. The communicationterminal 120, which received the authorization failure message from theservice server 130, can generate a warning signal indicatingauthorization error such as a warning sound or a warning light.

The smart card 110 stores fingerprint signature for a plurality offingers of the registered subscriber, and selectively transmits to thecommunication terminal 120, any of the fingerprint signature dependingon the fingerprint signature inputted by the user.

As described above, in case of storing a plurality of fingerprintsignature (thumb and index finger) as the biometric signature, thenormal user authorization may be performed as described above when theuser performs the authorization using a thumb, but abnormalauthorization process may be performed when attempting authorizationusing an index finger. For example, in the situation when a user isforced by someone to authorize himself or herself using the smart card110, and intentionally uses his or her index finger, the authenticationcompletion information including the authorization information isgenerated and transmitted to the communication terminal 120 from thesmart card 110, and the communication terminal 120 transmits it to theservice server 130.

The authorization server 150 which received the authorizationinformation for index finger fingerprint signature confirms the abnormalauthorization by checking registered information, denies theauthorization, registers the corresponding smart card 110 as anauthorization prohibited smart card so that further authorization may beprohibited, or goes through a process different from normalauthorization, which files a report to the related authority. Theauthorization server 150 may store access address corresponding to theindex finger fingerprint signature in the smart card, and authorizes thefingerprint signature and then may perform separate operation as itaccesses to a server which is different from the normal service serverby transmitting the corresponding access address (For example, accessaddress of a reporting center) when transmitting the authorizationinformation to the communication terminal. The security of the smartcard 110 can be reinforced by using a plurality of fingerprintsignature.

By performing an authorization for accessing to the correspondingservice server 130, the process of inputting user ID and passcode whichis required from the corresponding service server 130 can be omitted,which enables single-sign-on, concrete authorization. The authorizationof the user can be made concrete and simple by using a communicationterminal by performing the authorization using biometric signature ofthe smart card 110 and PKI (public key infrastructure) certificate aswell even while on the move.

The log data of user authentication using the smart card 110 may bedesigned by the log data storage section (not illustrated). When the logdata storage section confirms the user again based on the OTP at serviceserver 130 side, the log data thereof should be stored together.

Such log data can be used for future use as a confirmation of theconduct of a user. For example, signature of the user may be included inthe authentication information which is provided to the service server130, and can be provided as printed material or electronic file on theelectronic receipt or on the bill, by storing such signature informationalong with the log data.

Through such processes, the log data stored in the log data storagesection can be used as an evidence of legal issue occurred in relationwith the use of the smart card 110, and as means of preventingoccurrence of other future problems.

FIG. 1 is a block diagram illustrating a system for authorizingelectronic money according to a preferred embodiment of the presentinvention.

As illustrated in FIG. 1, the system for authorizing electronic money inaccordance with second embodiment of the present disclosure comprises asmart card 110 and a communication terminal 120.

The smart card 110 receives a biometric signature from a user, performsmatching of the biometric signature inputted from the user withpreviously stored biometric signature, transmits an authenticationcompletion information upon confirming the match, and receives anincrease command from the communication terminal 120, increases theamount of balance and transmits the increase completion message to thecommunication terminal 120.

The communication terminal 120 connects itself to the smart card 110 ina wired or wireless way, transmits the increase command to the smartcard 110 upon receiving the authentication completion information fromthe smart card 110, and receives increase completion message from thesmart card 110. Upon receiving the increase completion message, paymentinformation may be transmitted to the corresponding service server 130.

When the smart card 110 increases the balance data, a balance datastorage section 115 receives increase command from the communicationterminal 120 and increases the balance data of the balance data storagesection.

The case of increasing the amount in the smart card 110 using thecommunication terminal 120 may be applied when receiving change into thesmart card 110 at the store, and when receiving cash besides change.

The authentication completion information may comprise a URL (UniformResource Locator) and authentication information. The communicationterminal 120 connects itself to the smart card 110 in a wired orwireless way, and executes an authentication by transmitting theauthentication information to the URL and transmits the increase commandto the smart card 110 upon receiving the authentication successinformation from the URL.

The authentication information can be a PKI (public key infrastructure)certificate including an authentication code matching the biometricsignature stored in the smart card 110, and the service server 130authorizes the user by combining the PKI (public key infrastructure)certificate with information for authorization which is previouslystored.

The authentication information can be an OTP generated from the smartcard 110, and the service server 130 authorizes the user by receivingthe OTP.

The smart card 110 stores the fingerprint signature for a plurality offingers of the registered user and selectively transmits differentauthorization information depending on the fingerprint signatureinputted by the user to the communication terminal 120.

The smart card 110 and the communication terminal 120 for authenticatingthe user by inter-working with the service server 130 in the secondembodiment of the present disclosure can be performed in a similarmanner as the system for authorizing electronic money in accordance withthe first embodiment of the present disclosure.

FIG. 4 is a flow chart illustrating an example of the system forauthorizing electronic money in accordance with the first embodiment ofthe present disclosure.

The system for authorizing electronic money in accordance with the firstembodiment of the present disclosure is described by referring to theFIGS. 1 through 4.

The system for authorizing an electronic money in accordance with thefirst embodiment of the present disclosure comprises a step oftransmitting an authentication completion information including anauthorization information to the predetermined URL after the smart cardreceives the biometric signature from the user and the biometricsignature inputted by the user matches the stored biometric signature,and a step of updating the amount of the stored balance data after thesmart card receives an update command generated based on theauthentication completion information. Herein, when a PKI (public keyinfrastructure) certificate to be stored in the smart card is received,the PKI (public key infrastructure) certificate can be stored as theauthorization information in case that the inputted biometric signaturematches the stored biometric signature and that the information matchingthe biometric signature of the user is included in the received PKI(public key infrastructure) certificate.

For example, when a user purchases goods in a store or receives otherservices the user authentication is performed using the smart card andthe communication terminal.

First, the biometric signature inputted by the user in the biometricsignature scan and input section of the smart card is compared with thebiometric signature previously stored in the smart card (S402). It ischecked whether the two biometric signatures matches each other (S404),and the warning sound is generated if the two biometric signatures failto match each other (S406).

When the two biometric signature match each other, the authorizationinformation is transmitted from the smart card through the communicationterminal to the predetermined URL (S408).

The service server (assuming that the server has a URL address)transmits the authorization result to the communication terminal afterauthorizing the received authorization information (S410).

The communication terminal checks whether the authorization result is asuccess or not (S414), transmits a deduction command to the smart card110 if the authorization is a success (S418), and generates a warningsound if the matching is not confirmed (S406).

The smart card which received the deduction command deducts the balanceas much as the deduction data (S420).

If the communication terminal 120 transmits the increase command to thesmart card 110, the smart card increases the balance by as much as theincrease data included in the increase command (S420).

According to the embodiment of the present disclosure, when usingbiometric smart card in which electronic money is charged and using aservice from a remote place, the usage of an unauthorized person can beprevented and thus the security can be improved by using the smart cardin which the biometric signature is stored for user authentication.

When accessing to an Internet banking system by using the smart card110, the process of inputting ID of the user attempting to access to theInternet banking service providing server 130 may be replaced with theestablishment of the communication tunnel based on the biometricsignature of the user, and the process of inputting a passcode by theuser can be replaced with the process of transmitting a PKI (public keyinfrastructure) certificate through the established communicationtunnel. Therefore, by establishing a tunnel and authorization by usingthe smart card 110, the inputting process of ID and passcode which isrequested from the corresponding service providing server 130 can beomitted, and single-sign-on can be implemented, and more concreteauthorization of the user becomes possible.

The authentication of the user can be reinforced while simplifying theaccess to hope-for site on the road using communication terminal byperforming the authorization execution using biometric signature of thesmart card 110 and PKI (public key infrastructure) certificate.

Security can be improved by double-checking the biometric signature ifthe PKI (public key infrastructure) certificate as well as the biometricsignature are both used.

If fingerprint signature as the plurality of biometric signature in theuser authentication is used, it is advantageous that prevention ofabnormal usage by a stranger who forces the legitimate user intoperforming the authentication process.

Moreover, authorization ways can be provided and convenience of the usercan be improved by not requiring the password input, because theinventive method authorizes the user by automatically generating theOTP.

As above, even though it is explained that all components comprising thepreferred embodiment of the present invention are combined or operatedafter combined, the present invention is not always limited to suchpreferred embodiment. That is, at least one of those all components canbe combined selectively and can be operated. Also, all components can beimplemented respectively as an independent hardware, but also it can beimplemented as the computer program having program module which performssome or all functions that are combined in one or a plurality ofhardware, as some or all of each components are combined selectively.The codes and code segments comprising the computer program can beeasily inferred by the person in charge of technical field of thepresent invention. Such computer program is stored in the computerreadable media, and is read and executed by the computer, and can embodythe preferred embodiment of the present invention. A magnetic recordmedia, an optical record media, and a carrier wave media are comprisedas the computer program storage media.

In the description above, although all of the components of theembodiments of the present disclosure may have been explained asassembled or operatively connected as a unit, the present disclosure isnot intended to limit itself to such embodiments. Rather, within theobjective scope of the present disclosure, the respective components maybe selectively and operatively combined in any numbers. Every one of thecomponents may be also implemented by itself in hardware while therespective ones can be combined in part or as a whole selectively andimplemented in a computer program having program modules for executingfunctions of the hardware equivalents. Codes or code segments toconstitute such a program may be easily deduced by a person skilled inthe art. The computer program may be stored in computer readable media,which in operation can realize the aspects of the present disclosure. Asthe computer readable media, the candidates include magnetic recordingmedia, optical recording media, and carrier wave media.

In addition, terms like ‘include’, ‘comprise’, and ‘have’ should beinterpreted in default as inclusive or open rather than exclusive orclosed unless expressly defined to the contrary. All the terms that aretechnical, scientific or otherwise agree with the meanings as understoodby a person skilled in the art unless defined to the contrary. Commonterms as found in dictionaries should be interpreted in the context ofthe related technical writings not too ideally or impractically unlessthe present disclosure expressly defines them so.

Although exemplary aspects of the present disclosure have been describedfor illustrative purposes, those skilled in the art will appreciate thatvarious modifications, additions and substitutions are possible, withoutdeparting from essential characteristics of the disclosure. Therefore,exemplary aspects of the present disclosure have not been described forlimiting purposes. Accordingly, the scope of the disclosure is not to belimited by the above aspects but by the claims and the equivalentsthereof.

CROSS-REFERENCE TO RELATED APPLICATION

If applicable, this application claims priorities under 35 U.S.C §119(a)KR Patent Application No. 10-2009-0111999 dated in Nov. 19, 2009 inKorea, the entire contents of which are incorporated herein byreference. In addition, this non-provisional application claimspriorities in countries, other than the U.S., with the same reason basedon the Korean Patent Applications, the entire contents of which arehereby incorporated by reference.

1. A system for authenticating an electronic money comprising: a smartcard for receiving a biometric signature from a user, matching thebiometric signature input from the user with a previously storedbiometric signature of the user, transmitting an authenticationcompletion information confirming the two biometric signature match eachother, and updating a balance of the electronic money upon receiving anupdate command; and a communication terminal, connectable to the smartcard in a wired or wireless way, for transmitting the update command tothe smart card upon receiving the authentication completion information.2. The system for authenticating an electronic money according to claim1, the authentication completion information comprises a URL (UniformResource Locator) and an authentication information, and thecommunication terminal executes an authentication process bytransmitting the authentication information to the URL and transmits theupdate command to the smart card upon receiving an authorization successinformation from the URL.
 3. The system for authenticating an electronicmoney according to claim 1, wherein the update command is a deductionsignal which is generated periodically.
 4. The system for authenticatingan electronic money according to claim 1, wherein the biometricsignature comprises at least one of fingerprint signature, vascularpattern information, voice pattern information, iris patterninformation, and palm pattern information.
 5. The system forauthenticating an electronic money according to claim 1, wherein thesmart card stores the fingerprint signature for a plurality ofregistered users, and selectively transmits an authorization informationto the communication terminal depending on the fingerprint signatureinputted by the user.
 6. The system for authenticating an electronicmoney according to claim 2, wherein the authorization informationcomprises a PKI (public key infrastructure) certificate having anauthentication code that matches the biometric signature.
 7. The systemfor authenticating an electronic money according to claim 2, wherein theauthentication information comprises a one-time password (OTP) generatedby the smart card.
 8. The system for authenticating an electronic moneyaccording to claim 2, wherein the authorization information comprises acode for authentication the user and a transmission time information ofthe authorization information.
 9. The system for authenticating anelectronic money according to claim 2, wherein the communicationterminal requests the electronic money authentication service to the URLupon receiving the authorization success information from the URL, whiletransmits an update command to the smart card upon receiving the updatecommand from the URL.
 10. The system for authenticating an electronicmoney according to claim 6, wherein the smart card comprising: abiometric signature scan and input section for receiving the biometricsignature from the user; a biometric signature storage section forstoring a biometric signature of registered subscribers; a PKI (publickey infrastructure) certificate storage section; a biometric signaturematching section for comparing the biometric signature inputted from thebiometric signature scan and input section with the biometric signaturestored in the biometric signature storage section to determine whetherthe two biometric signature matches each other or not, when the PKI(public key infrastructure) certificate for storing in the PKI (publickey infrastructure) certificate storage section is received; and a PKI(public key infrastructure) certificate storage control section forstoring the PKI (public key infrastructure) certificate in the PKI(public key infrastructure) certificate storage section, when theinputted biometric signature matches the stored biometric signature andan information that matches the biometric signature of the user isincluded in the PKI (public key infrastructure) certificate.
 11. Amethod for authorizing an electronic money comprising: receiving, at asmart card, a biometric signature input from a user, and transmitting anauthentication completion information carrying an authentication oninformation to an uniform resource locator (URL) which is previously setwhen the inputted biometric signature and the stored biometric signaturematch each other: and receiving, at a smart card, an update commandgenerated based on the authentication completion information andupdating an amount of money for a stored balance data.
 12. The methodfor authorizing an electronic money according to claim 11, when a PKI(public key infrastructure) certificate is received, as theauthorization information for storing in the smart card, in the firstreceiving step, the PKI (public key infrastructure) certificate isstored as the authorization information in case that both the inputtedbiometric signature and the stored biometric signature match each otherand an information matching the user biometric signature is included inthe PKI (public key infrastructure) certificate.